pentad
[ pen-tad ]
/ ˈpɛn tæd /
noun
a period of five years.
a group of five.
the number five.
Chemistry.
a pentavalent element or group.
Climatology.
a period of five consecutive days.
Words nearby pentad
Example sentences from the Web for pentad
British Dictionary definitions for pentad
pentad
/ (ˈpɛntæd) /
noun
a group or series of five
the number or sum of five
a period of five years
chem
a pentavalent element, atom, or radical
meteorol
a period of five days
Word Origin for pentad
C17: from Greek
pentas group of five